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About this app
The essential reference guide for stamp lovers, the WNS is a reliable, unique and free database of certified stamps issued by Posts. Fully filterable and easily searchable with a single-click authentication using AI, this user-friendly database – with new stamps added to the vast collection every week – is the perfect tool to support your philatelic hobby!
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Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- No data shared with third partiesLearn more about how developers declare sharing
- No data collectedLearn more about how developers declare collection
What’s new
New Languages: We have added Turkish and Italian language support. You can now change your language preference in the settings.
Rate the App: We value your feedback. You can now easily rate our app and share your thoughts directly from within the application.
Rate the App: We value your feedback. You can now easily rate our app and share your thoughts directly from within the application.
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About the developer
Union Postale Universelle (UPU)
apps.support@upu.int
Weltpoststrasse 4
3005 Bern
Switzerland
+41 79 345 99 72
